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new conversion float->integer: conversion is valid only when

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float has an exact representation as an integer
This commit is contained in:
Roberto Ierusalimschy
2014-07-17 09:30:53 -03:00
parent c229ed597f
commit 8bb272a3e3
4 changed files with 46 additions and 35 deletions
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12
ldebug.c
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@@ -1,5 +1,5 @@
/*
** $Id: ldebug.c,v 2.97 2013/12/09 14:21:10 roberto Exp roberto $
** $Id: ldebug.c,v 2.98 2014/07/15 21:26:50 roberto Exp roberto $
** Debug Interface
** See Copyright Notice in lua.h
*/
@@ -534,18 +534,20 @@ l_noret luaG_concaterror (lua_State *L, const TValue *p1, const TValue *p2) {
l_noret luaG_aritherror (lua_State *L, const TValue *p1, const TValue *p2) {
lua_Number temp;
if (!tonumber(p1, &temp))
p2 = p1; /* first operand is wrong */
if (!tonumber(p1, &temp)) /* first operand is wrong? */
p2 = p1; /* now second is wrong */
luaG_typeerror(L, p2, "perform arithmetic on");
}
/*
** Error when both values are convertible to numbers, but not to integers
*/
l_noret luaG_tointerror (lua_State *L, const TValue *p1, const TValue *p2) {
lua_Integer temp;
if (!tointeger(p1, &temp))
p2 = p1;
luaG_runerror(L, "attempt to convert an out of range float%s to an integer",
varinfo(L, p2));
luaG_runerror(L, "number%s has no integer representation", varinfo(L, p2));
}